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2 years ago

Lessons are 55 mins long, a history lesson ends at 3:30 pm at what time does the lesson start

Mathematics

1 answer:

Mandarinka [93]2 years ago

6 0

Answer:

2:35 pm

If an hour is 60 minutes, what we know is that 30 minutes is half. However, we must subtract 55 from 30 (In time)

To make this easier, subtract 55 by actual 30, and split 55 into 2 parts, the result of subtraction, and the other value, 30

$55-30=25$

Now, subtract.

$3:30 - 30 = 3:00$

$3:00-25=35$

If this is the case, the lesson must have started at 2:35 pm

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If I wanted to change the vertex of a quadratic function from (2,3) to (-1,6), what form would you use and what would you do to

vampirchik [111]

This is a translation and it is most easily done with the vertex from of the equation. change vertex to (-1,6): y=a(x+1)+6

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3 years ago

Hannah sells computers. The amount of her monthly sales for the first half of the year are listed below:

yulyashka [42]

Answer:

Mean = $16,500

Mode = $14,000

Median = $16,000

Step-by-step explanation:

Mean: We add all the numbers together and divide by 6 but this isn't the mean as we have to factor out and get it to the correct number. Therefore we will do the following.

14000+18000+13000+19000+21000+14000 / 6 Cancel the common factors

factor 2 out of everything

2(7000+9000+6500+9500+10500+7000) / 6

we get rid of the 2 and the 6 by factoring them out. so we now get

7000+9000+6500+9500+10500+7000 / 3

Now we add the numbers together and divide by 3

49500 / 3 = $16,500

Mode: This is easy as there is only 1 number that appears more then 1 time and therefore is 14,000

Median = we arrange the numbers from smallest to largest and find the center number. since there are an even number we will take the 2 center numbers and add them together and divide by 2.

13000, 14000, 14000, 18000, 19000, 21000

So we will take 14000 and 18000 and add them together then divide by 2.

14000 + 18000 = 32000/2 = $16,000

3 0

3 years ago

An animal shelter spends 5.50 per day to care for each bird and 8.50 per Day to care for each cat and a notice that the shelter

Deffense [45]

Answer:

19 birds

Step-by-step explanation:

First, I wrote my two equations:

5.5x +8.5y = 291.5

x + y = 41

Next, I got the variable y by itself in the second equation. Subtract x to get y = -x + 41. Then, I substituted what y equaled into the first equation. It should look like this: 5.5x + 8.5(-x+41) = 291.5. Distribute 8.5 to get 5.5x -8.5x + 348.5 = 291.5. Subtract 5.5x and 8.5x to get -3x. It should look like this: -3x + 348.5= 291.5. Subtract 348.5 from 291.5 to get -57. Now, you should have -3x = -57. Divide -3 from both sides, to get x = 19. So, there are 19 birds. If you want to go even further, 41-19= 22, which means there are 22 cats. Hope this helped!

6 0

3 years ago

How much can 14 go into 16

Fantom [35]

Once, 14 divided by 16 equals 1 with a remainder of 2

4 0

4 years ago

Find the slope. write in slope intercept form and point slope form.

MaRussiya [10]

Answer:

1,4

Step-by-step explanation:

2 + 1 is 3. 3 + 4 is 7

3 + 1 is 4. 7 + 4 is 11. so it's 1 up and 4 across

3 0

3 years ago